问题在于，IT产业的商业模式是否能迎接上述挑战，即使它们所在的市场已经减慢了增长速度。

The question is whether the industry's business model can cope with these threats even as the potential for growth in its established markets declines.

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享受逐步有挑战性的层次和两种截然不同的玩法-在马拉松上清理所有的网格，依你自己的速度爆破方块，或者依时间速模式竞赛模式来赢得比赛。

Enjoy progressively challenging levels and two distinct play modes - clear the entire grid in Marathon, blasting blocks at your own pace, or race the clock in Speed mode.

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